TY - JOUR
T1 - On-chip generation of heralded photon-number states
AU - Vergyris, Panagiotis
AU - Meany, Thomas
AU - Lunghi, Tommaso
AU - Sauder, Gregory
AU - Downes, James
AU - Steel, M. J.
AU - Withford, Michael J.
AU - Alibart, Olivier
AU - Tanzilli, Sébastien
N1 - Copyright the Author(s) 2016. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
PY - 2016/10/24
Y1 - 2016/10/24
N2 - Beyond the use of genuine monolithic integrated optical platforms, we report here a hybrid strategy enabling on-chip generation of configurable heralded two-photon states. More specifically, we combine two different fabrication techniques, i.e., non-linear waveguides on lithium niobate for efficient photon-pair generation and femtosecond-laser-direct-written waveguides on glass for photon manipulation. Through real-time device manipulation capabilities, a variety of path-coded heralded two-photon states can be produced, ranging from product to entangled states. Those states are engineered with high levels of purity, assessed by fidelities of 99.5 ± 8% and 95.0 ± 8%, respectively, obtained via quantum interferometric measurements. Our strategy therefore stands as a milestone for further exploiting entanglement-based protocols, relying on engineered quantum states, and enabled by scalable and compatible photonic circuits.
AB - Beyond the use of genuine monolithic integrated optical platforms, we report here a hybrid strategy enabling on-chip generation of configurable heralded two-photon states. More specifically, we combine two different fabrication techniques, i.e., non-linear waveguides on lithium niobate for efficient photon-pair generation and femtosecond-laser-direct-written waveguides on glass for photon manipulation. Through real-time device manipulation capabilities, a variety of path-coded heralded two-photon states can be produced, ranging from product to entangled states. Those states are engineered with high levels of purity, assessed by fidelities of 99.5 ± 8% and 95.0 ± 8%, respectively, obtained via quantum interferometric measurements. Our strategy therefore stands as a milestone for further exploiting entanglement-based protocols, relying on engineered quantum states, and enabled by scalable and compatible photonic circuits.
UR - http://www.scopus.com/inward/record.url?scp=84992723947&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/arc/CE1101018
U2 - 10.1038/srep35975
DO - 10.1038/srep35975
M3 - Article
C2 - 27775062
AN - SCOPUS:84992723947
SN - 2045-2322
VL - 6
SP - 1
EP - 6
JO - Scientific Reports
JF - Scientific Reports
M1 - 35975
ER -